Gas-regulator



J.H. L THER.

(No Model.)

GAS REGULATOR. v v

Patented Feb. 13, 1883.

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UNITED STATES JAMES H. LUTHER, F KARNES CITY, PENNSYLVANIA.

GAS-REGULATO R.

SPECIFICATION forming part of Letters Patent No. 272,281, dated February 13, 1883, Application filed December 8, 1 882. (No model.)

To all whom it may concern:

Karnes City, in the county of Butler and State of Pennsylvania, have invented certain new and useful Improvements in Gas-Regulators; and I do hereby declare that the following is a full, clear, and exact description of theinvention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, and to letters of reference marked thereon, which form a part of this specification.

Figure 1 representsatransverse vertical section of the regulator; Fig.2, a transverse horizontal section on the linexzr, looking from the top; Fig. 3, a reduced detail view, showing the top of the diaphragm; Fig. 4:, a bottom view of the cylindrical valve or piston; Fig. 5, a vertical section of the same; Fig. 6, atop view of the same.

This invention relates to improvements in gas-regulator's or those devices which are intended to control the flow of gas, so that it may be supplied at any predetermined pressure. In thefiow of gas as it comes from the reservoir, especially such as comes from the natural source in the ground, it is found that the pressure is too great to'allow the full supply. The gas, flowing with a steady and strong pressure, sufficient for the greatest requirements, is too strong when such supply is not demanded. -In case the use diminishes, the force at other points is too great, and. danger is imminent. To prevent this gasometers are generally used, and also various regulators have been devised. The former are costly and are only within the use of companies, and the latter heretofore do not seem to fully answer .the purpose.

' The present inventionis designed to supplythe place of gaso meters, as it will regulate the flow, however great the pressure, to a nice degree, and by its fine adjustment and arrangement of parts it obviates difliculties found in other regulators.

The invention consists in the peculiarities of construction hereinafter set forth.

In the annexed drawings, the letter'A indicates theregulator, having the upper half or shell, 13, and the lower half or shell, 0, the former provided with a hollow stem, b, and the latter with the cylindrical projection or tube 0. Just below its upper plate, D, the lower shell, 0, is provided around the tube 0 with a circular offset, E, forming an interior chamber, e, into which leads one or more pipes, F. At the plate D the tube a is made with an annular slot, 0, forming a free communication between the chamber e-and the bore of the tube. Within this bore is placed the valveor piston G. I This valve or piston-is cylindrical, having its bottom g open and its upper end or top,g, closed or solid with its wall. This piston is furnished with interior ribs, gfiwhich strengthen it, and also allow it to be made with an annular groove, g which is cut around the piston and into the ribs within the shell, as shown in Fig. 2. This groove forms curved slots between the ribs, giving a free entranceinto the shell of the piston. In its top 9 this piston is furnished with two holes, 9 preferably between the 'ribs.-

Securedto and rising from the piston G is the stem or rod H, which passes up into the hollow stem b of the upper shell, B. As it passes upward this stem or rod goes through the center kof a diaphragm, K,whicl1 is secured in the seat z", between the shells B and O. This diaphragm is made of some flexible materialpreferably leather-and is made with a circular rib, k, which is very pliant, and acts as a hinge, as will be hereinafter explained. Within this rib there is secured to the diaphragm about the stem a rigid plate of met-a1, L, to strengthen the diaphragm and maintain an equality of pressure. The diaphragm and-disk may be screwed upon the stem and a nut be placed on to keep them in position, the shell B being providedwith a recess, 1), to receive the nut. In a small device, if desired, a washer maybe placed between the diaphragm and the top of the piston. Passing down through the hollow stem b is a rod, H, which rests upon the top of the stem H, and is provided with weights It or a spring. Valves 1) are to be placed in the upper shell, B, for use as hereinafter explained.

To render this device gas-tightin its operation arecess, m, is cutaround the bore, through which the head of the piston passes, and ,in this recess a packing is placed.

In use the regulator is connected to the lowpressure carrying-pipe, with a stop-cool; between it and this pipe, by the coupling 1 or otherwise; and it is connected to the highpressnre pipe by the pipe or pipes F, with a stop-cock between. A pressure-gage is now attached to the low-pressure side of the machines and the two stop-cocks opened. The diaphragm is then weighted, as shown in the drawings, (or a spring may be employed,) until the pressure-gage shows the amount of pressurereqnired. Themore gasthatisdrawn from the regulator the more the weight will deflect the diaphragm, and the greater will be the opening for the admission ofgas from the high to the low pressure side of the device. In this way the regulator has a constant automatic compensating movement, graduating;

the supply to the demand.

The rib it around the diaphragm K, being 1' ure, close the valves, and thus liability of escape is precluded.

Having thus described my invention, what I claim is- 1. In a gas-regulator, the upper and lower shells and an intervening diaphragm, one shell being provided with induction and eduction passages, a tube, and passage leading to the bore of said tube, in combination with a hollow piston fitting in said tube, having an opening leading within and a passage leading to the space between the shells, as set forth.

2. The shell of the regulator, having passages F and c and slot 0, and the valve G, having the groove and openings g, in combination with the diaphragm K and the weight it, as set forth.

3. In a gas-regulator, the valve G, having the opening g and the diaphragm K, in combination with the valve 0 as set forth.

In testimony that I claim the foregoing as my own I afiix my signature in presence of two witnesses.

JAMES H. LUTHER.

Witnesses Geo. F. GRAHAM, L. O. YOUNG. 

